Chair assembly

ABSTRACT

A chair assembly includes a frame, seat, and a back. The frame has two foot frames and two back supports. The foot frame has an upper rod, and an extending supporting rib is formed to the upper rod. The back support has an assembling sheet. The seat has a cut for receiving the upper rod of the foot frame on two lateral sides thereof, and the rear side of the seat also has a cut for receiving the transverse shaft of the frame. The back has two pin holes on two lateral sides of the bottom thereof for receiving the back supports of the frame, and the pin hole has a slot for receiving the assembling sheet of the back support. The seat is fixed to the frame, and the back is fixed to the frame through the assembling sheet of the back support with two fastening components.

FIELD OF THE INVENTION

The present invention relates to chairs, and particular to a chair assembly accomplished the assembling between a seat and a frame with one fastening component and the assembling between a back and the frame with two fastening components. The chair assembly has a nice and tidy appearance without seeing the fastening between the parts.

DESCRIPTION OF THE PRIOR ART

Chairs usually consist of a frame, seat, and back. There are many types of chair such as wooden chair with wooden seat and back, wooden chair with cushion seat and back, metal chair with metal seat and back, or metal chair with cushion seat and back.

Conventional assembly of chair usually uses a lot of screws to assemble the seat and back to the frame. Such assembly is complicated and time-consuming with higher manufacture cost. An outer appearance will be harmed by the screws fastening the parts of the chair.

Therefore, for the purpose of reduce the cost of manufacture and transportation, to create a chair assembly with simple assembling and better appearance is an urgent object.

SUMMARY OF THE PRESENT INVENTION

Accordingly, the primary object of the present invention is to provide a chair assembly of lower cost for manufacture and transportation. The secondary object of the present invention is to provide a chair assembly of better outer appearance without seeing the fastening between the parts thereof.

To achieve above objects, the frame has two foot frames and two back supports. The foot frame has an upper rod, and an extending supporting rib is formed to the upper rod. The back support has an assembling sheet. A transverse shaft linking the two foot frames is formed to the rear side of the frame, and the transverse shaft has an assembling sheet. The seat has a cut for receiving the upper rod of the foot frame on two lateral sides thereof, and the rear side of the seat also has a cut for receiving the transverse shaft of the frame. The back has two pin holes on two lateral sides of the bottom thereof for receiving the back supports of the frame, and the pin hole has a slot for receiving the assembling sheet of the back support. The seat is fixed to the frame through the assembling sheet of the transverse shaft with a fastening component, and the back is fixed to the frame through the assembling sheet of the back support with two fastening components. With the simple and time-saving assembling, the chair having a tidy appearance without seeing any fastening between the parts will achieve a lower cost of manufacture and transportation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view showing the first embodiment of the present invention.

FIG. 2 is a schematic view showing the first embodiment of the present invention.

FIG. 3 is a front view showing a back of the present invention.

FIG. 4 is a bottom view of the back of the present invention.

FIG. 5 is a cross-section view through a G-G line in FIG. 3.

FIG. 6 is a cross-section view through an A line in FIG. 2.

FIG. 7 is a cross-section view through a B line in FIG. 2.

FIG. 8 is a front view showing a seat of the present invention.

FIG. 9 is a bottom view showing the seat of the present invention.

FIG. 10 is a rear view showing the seat of the present invention.

FIG. 11 is a right side view showing the seat of the present invention.

FIG. 12 is a cross-section view through an H-H line in FIG. 9.

FIG. 13 is a cross-section view through a J-J line in FIG. 9.

FIG. 14 is a cross-section view through a D line in FIG. 2.

FIG. 15 is a cross-section view through an E line in FIG. 2.

FIG. 16 is a cross-section view through an F line in FIG. 2.

FIG. 17 is an exploded view showing the second embodiment of the present invention.

FIG. 18 is a schematic view showing the second embodiment of the present invention.

FIG. 19 is a cross-section view through a K line in FIG. 18.

FIG. 20 is a cross-section view through a L line in FIG. 18.

DETAILED DESCRIPTION OF THE INVENTION

In order that those skilled in the art can further understand the present invention, a description will be provided in the following in details. However, these descriptions and the appended drawings are only used to cause those skilled in the art to understand the objects, features, and characteristics of the present invention, but not to be used to confine the scope and spirit of the present invention defined in the appended claims.

Referring to FIGS. 1, 2, 17, and 18, embodiments of a chair assembling according to the present invention are illustrated.

Referring to FIGS. 1 to 16, the first embodiment includes a frame 1, seat 2, and back 3. The frame 1 includes two linked foot frames 11 for holding the seat 2 and a back support 12 for assembling the back 3. An upper rod 111 of the foot frame 11 has an extending supporting rib 112 for holding the seat 2. The back support 12 extending from the frame 1 has an assembling sheet 121 for assembling the back 3, the assembling sheet 121 has a through hole 122. A transverse shaft 13 linking the two foot frames on the rear of the frame 1 has a assembling sheet 131, the assembling sheet 131 has a through hole 132.

Referring to FIGS. 8 to 16, the seat 2 has a cut 20 for receiving the upper rod 111 of the foot frame 11 on two sides of the seat 2 as shown in FIGS. 12, 14, and 15. A slot 21 is formed to the cut 20 for receiving the supporting rib 112. The rear side of the seat 2 also has a cut 20 for receiving the transverse shaft 13 as shown in FIGS. 11, 13, and 16, and a positioning slot 22 is formed to the cut 20 for receiving the assembling sheet 131. A through hole 221 penetrating the positioning slot 22 is formed to a rear bottom of the seat 2 so as to receive a fastening component 5 such as a bolt.

Referring to FIGS. 3 to 7, two pin holes 31 are formed to two lateral sides of the bottom of the back 3 for receiving the back supports 12 of the frame 1. A slot 32 is formed besides the pin hole 31 for receiving the assembling sheet 121. A through hole 321 penetrating the slot 32 is formed to the rear of the back 3 so as to receive a fastening component 5 such as a bolt.

Referring to FIGS. 17 to 20, the second embodiment of the present invention is illustrated. The embodiment includes a frame 1, seat 2, back 3, and net cloth 4 arranged to the seat 2 and back 3. The seat 2 is a frame having a central cut as shown in FIG. 20, and the back 3 is also a frame having a central cut as shown in FIG. 19. A groove 23 enclosing the central cut of the seat 2 is formed to an upper surface of the seat 2 for fastening edges of the net cloth 4 so that the net cloth 4 will cover the central cut of the seat 2. A groove 33 enclosing the central cut of the back 3 is formed to a front side of the back 3 for fastening edges of the net cloth 4 so that the net cloth 4 will cover the central cut of the back 3.

Referring to FIGS. 19 and 20, the edges of the net cloth 4 are wrapped around a rectangle flexible positioning frame 6 from an outer rim of the frame 6. The cross-section of the positioning frame 6 is rectangular. The edges of the net cloth 4 are wrapped and fixed to the positioning frame 6 (by sewing or other methods). The positioning frames 6 covered by the net clothes 4 are inserted into the groove 23 and 33 of the seat 2 and back 3 respectively. While the net cloth 4 is pressed by body weight, the tension will pull the positioning frame 6 towards the groove holding the positioning frame 6 so that the positioning frame 6 will not escape from the groove.

Referring to FIGS. 1 and 17, the assembling of the present invention is illustrated. The seat 2 is slid into the frame 1 by the cuts 20 of the seat 2 receiving the upper rods 111 of the frame 1 and the supporting ribs 112 of the upper rods 111 received by the slots 21 of the cuts 20. With the transverse shaft 13 of the frame 1 received by the rear cut 20 of the seat 2 and the assembling sheet 131 of the transverse shaft 13 received by the positioning slot 22, the seat 2 will be fixed to the frame by inserting a fastening component 5 into the assembling sheet 131 through the through hole 221 of the seat 2 as shown in FIG. 16. The back 3 is slid into the back supports 12 of the frame 1. The back 3 is fixed to the frame 1 by inserting a fastening component 5 into the assembling sheet 121. With the simple and time-saving assembling, the chair with a tidy appearance can lower a cost of manufacture and transportation. 

What is claimed is:
 1. A chair assembly comprising: a frame having two linked foot frames and a back support; the foot frame having an upper rod, and a supporting rib extending from the upper rod; the back support having an assembling sheet; a transverse shaft linking the two foot frames on the rear of the frame, the transverse shaft having an assembling sheet; a seat having a cut for receiving the upper rod of the foot frame on two lateral sides thereof; the cut having a slot inside thereof for receiving the supporting rib of the upper rod; the rear side of the seat also having a cut for receiving the transverse shaft of the frame, the cut having a positioning slot for receiving the assembling sheet of the transverse shaft; a back having two pin holes on two lateral sides of the bottom of the back for receiving the back supports of the frame; the pin hole having a slot for receiving the assembling sheet of the back support.
 2. The chair assembly as claimed in claim 1, wherein the assembling sheet of the transverse shaft has a through hole.
 3. The chair assembly as claimed in claim 1, wherein the assembling sheet of the back support has a through hole.
 4. The chair assembly as claimed in claim 1, wherein the seat is a frame; an enclosed groove is formed to an upper surface of the seat for fastening edges of a net cloth.
 5. The chair assembly as claimed in claim 1, wherein the back is a frame; an enclosed groove is formed to a front surface of the back for fastening edges of a net cloth.
 6. The chair assembly as claimed in claim 4, wherein the edges of the net cloth are wrapped around a positioning frame from an outer rim of the frame and fixed to the frame.
 7. The chair assembly as claimed in claim 5, wherein the edges of the net cloth are wrapped around a positioning frame from an outer rim of the frame and fixed to the frame. 